From e197e9745d136c71f44c1bdd8b617d18793cb783 Mon Sep 17 00:00:00 2001
From: David Manthey <david.manthey@kitware.com>
Date: Thu, 11 Apr 2019 08:07:20 -0400
Subject: [PATCH] Don't remove and readd the actor when rebuilding webgl
 points.

---
 src/webgl/pointFeature.js | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/webgl/pointFeature.js b/src/webgl/pointFeature.js
index a9c8396646..5746fad7a0 100644
--- a/src/webgl/pointFeature.js
+++ b/src/webgl/pointFeature.js
@@ -456,14 +456,10 @@ var webgl_pointFeature = function (arg) {
    * @returns {this}
    */
   this._build = function () {
-
-    if (m_actor) {
-      m_this.renderer().contextRenderer().removeActor(m_actor);
-    }
-
     createGLPoints();
-
-    m_this.renderer().contextRenderer().addActor(m_actor);
+    if (!m_this.renderer().contextRenderer().hasActor(m_actor)) {
+      m_this.renderer().contextRenderer().addActor(m_actor);
+    }
     m_this.renderer().contextRenderer().render();
     m_this.buildTime().modified();
     return m_this;